Combined type-writing and computing machine.



F. A. HART. COMBINED TYPE WRITING AND COMPUTING MACHINE.

` APPLICATION FILED NOV. 28. I9II- Patented Apr. 24:, 1917.

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Patented Apr. 24,191?.

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IN V E N T0 R:

ATTURILE F. AQ HART.

APPLICATION FILED NOV. 28| I9II.

'COMBINED TYPE WRITING AND COMPUTING MACHINE.

MM 0 Qfwf lll IIIIIII|III I FVIIIYIIIIIIIIIIIJI )IYIIL iIIIIIIIIIIIIIIII Ixfrrl 1| UNITED STATES PATENT OFFICE.

EEEDEEICK A. HAET, or JERSEY CITY, NEWJEEsEY, AssiGNoE To UNDEnWooD CoM-PUTING MACHINE CQMPANY, or NEW YORK, N. Y., A CORPORATION oE-NEw YORK.

COMBINED TYPE-WRITING AND COMPUTING MACHINE.

Specification of Letters Patent.

Patented Apr. 24,1917..

Application led November 28, 1911. Serial No. 662,873.

To all 'whom it may concern:

l new andfusefullmprovements in Combined Type-Writing and ComputingMachines, of which the `following is a specification.

This invention relates to means for writ- A.ing a clearance sign uponthe work sheet in a combined typewriting and .computing ma chine, andparticularly a' machine vof the class in which one element of thecomputing mechanism isconnected to travel stepby-step with theletter-feeding carriage.

An object of 'the-invention is to provide simple, inexpensiveandreliable mechanism in this type of machine, for enabling the operator toprove that the computing wheels have been turned to zero.

In carrying o-ut theinvention, there is provided a key connected -to a.clearance type, and this keyis locked against. actuation until it isautomatically released by the rotation of allthewheels to their zeropositions, whereuponsaid` key may be manipulated to print the clearancetype, which may consist of a star.v or a special-letter or character,which is different from `the other types of the typewriting. machine.

This lock 'and'automatic release fori-the clearance key is eiiective at'all positions of .y the 'typewriter carriage, and in case'the computinghead is mounted on said-carriage,

at al1-ad3ustments of said computing head -along the carriage. l

There vis provided'; upon the computing i head a'tuinbler in the-form ofa bar extendving, along all of the computing wheels, and normally riding-upon their peripheries.

Each computing wheel has in its periphery a single depression, and when'the depressions are in line, (that is, 'when the wheels stand at zero),said tumbler will drop into' the depressions or notches, and therebyrelease the clearance key for actuation. v To connect such tumbler withthe clearance key, there is provided a bar. extendingI along the run ofthe carriage in position to be lengaged and operated bysaid tumbler atany position `in which the computing head may beplaced.V

Other features and inafter appear.

advantages will here- In the accompanying drawings, the improvement isshown, for convenience, as

appliedto a type of machine known as the Remington having attachedthereto adding mechanism known as the Wahl although the improvement maybe applied to other styles of typewriting machines and computingvmechanisms.

Figure 1 is a diagrammatic sectional elevation takennfroin front'to rearabout cen-v trally of a,l machine 4of thetype described,

showing my improvements applied thereto.

Fig. 2 is a frontelevation of the uppe partof the machine.'

Fig. 3-is a diagram illustrating the clearance mechanism as lockedagainst actuation.l

which is mountedupon a carriage et con- .trolled by-dogs 5 andescapement wheels 6;i

said dogs' being controlled by a universal.

bar 7 actuated by the levers 2. Y

. Upon a bar or rack 8, extending along the l front ofthe carriage, is-adjustably mounted a computing. head '9, having .dial wheels 10,

operable by gears 11, 12, andmaster wheel 13, the latter havingconnections 14 to thel numeral type keys,l as usual in the Wahllj- 4niachine,so that whenanynunieral key is depressed, .its type is printed,and I the dial wheel 10 is turned to av corresponding extent.

Upon eachdial wheel 10 there is provided (Fig. 4) a notch 15, which-maybe of con,l

.cave iorm`and may bear one ofthe nu- `merals of the dial wheel, as forinstance the -numeral 9, as illustrated. Intolthese notches there mayfall a universal tumbler 16,which is mounted upona pair of arms 17extending forwardly from a rock shaft 18, which is journaled inthecasing of the adding head 9; said arms lying outside of the casing.

There may extend downwardly from said rock shaft 18 a pair of arms 19,forming with cross bars 20 a frame; and one or more draw springs 21,connected between the computing head and the arms 19, may pull saidtumbler .16 down into the notches 15, when the wheels all stand at zero,that is,

when their zeros are all visible through a sight opening 22 in thecomputing head; said bar 16 being preferably just back of saidsightopenin'g, and working lthrough an opening 23 in said casing.

Whenever any of said dial wheels 10 is 'out of zero position, as atFig.`3, the universal tumbler 16 -is'elevated, and a latch' 24 is drawn by aspring 25 ,beneath a hook 26 on a lever 27 which bears a'. key 28, andis connected by connections2", toa type bar 29 lhav`ing"'a` specialClearance type 30 thereon. y

It will be seen that said latch vdepends from ka frame which comprises along horizontal bar 31 and a pair of arms 32 on which it is carried;said frame 'being hin ed at 33 to theframework; the latch 24 belng inthe form of a long arm extending down from one of .-the arms 32.

The lifting of the tumbler 16 lagainst the tension of -sprin` 21, throwsforward the bar 20, and permits the bar 31 to rise under the tension ofspring '25, so that thelatch 24 is thrown forwardly to lock'the key 28against actuation. -The parts remain in lthese positions during theAsubsequent operation of the computin mechanism, and until the wheels-areall rought again to zero, whereupon the tumbler is permitted to dropintothe notches 15 under-the tension of the spring orsprings21, and thebar 20 cams downwardly the -bar 31, (the bottom surface of theformerbeing inclined at 34 for this purpose),v and vthe latch arm 24 isswuno rearwardly, thus releasing the key 28. '`hi'soperation may occurat any point in the run of the typewriter carriage 4, or at anyl pointto which the computing head 9 is adjusted along the rack 8 on said car-'riage;- the usual dog 35 kbeing provided for locking the computing-head.to the rack. Before beginning the writlng or computation of a column,the operator brings the 'wheels to zero in the usual manner, and

then strikes the key 28 to prove that the computing wheels-did not showany number thereon at theltime-A of the beginning of thecomputation.Other uses of the device will be apparent 'to those skilled inthe art. yVariations may `be resorted to within the scope of the invention, andportions of the improvements may be'used without others.

Having thus described my invention, lI

claim:

1. The combination with a computing head and a master wheel, of acarriage to which said computing head is connected for step-byste`pmovements, a clearance typekey on the framework of the machine, andmeans controlled by said computing head in various positionsthereof forlocking and 'releasing said clearancetype-key.

2. The combmatumwith a 'master wheel `and a set ofy computing-wheels, ofa carriage to which said computing wheels are connected, a bar extendingalong thc run of said carriage, ay clearance type-key upon theyframework of themachine and controlled by said bar, and means forcausing said wheels to operate through said bar to render said keyeffective or ineffective.

3;'1`he combination with a masterwheel nected, a bar extending along therun of the carriage, a type-operating1 clearance key upon the frame ofthe mac ine, a latch for locking said key, and means operating' riage towhich said computing wheels areI connected, a bar extending along'therdn of the carriage, a type-operating clearance key upon the frame ofthe machme, a ylatch y and a set of computingwheels, of a carriage towhlch sald computing Wheels are con.

controlled by said bar for locking said key,

a tumbler, said computing wheels being provided with notches'into whichsaid tum- -bler may fall when allthe wheels stand at zero, and means tocause said tumbler to operate said bar at different positions of saidcarriage.

5. The combination with a, letter-feeding typewriter carriage and a'rack thereon, of a computing head adjustable along said rack and'comprising a set 4of computing wheels, each of said wheels having anotch, a tumbler mounted upon said computing head and extending alongsaidvwheels, a spring to cause said tumbler to fall into the notcheswhen ythe wheels all stand at zero, a bar extending parallel to the runof the carriage, said tumbler hinged upon said computing head andhavingapart to engage andoperate said bar, an arm rigid with said bar andhaving a latch thereon, a type-operating clearance key having'a hook,and a spring to move said latch to engage said hook. v l

y6. The combination with computing mechanism, of printing means, a keyfor controlling the action of said printing means, locking means forsaid key, said computing mechanism having a traveling element., andcontrolling means for governing said locking means from said travelingelement in all positions of the rlatter.

7.*The combination with a travelin cornputing mechanism, of means forindicating al certain state of said computing'mechanism, a lock for saidmeans, and connections universal to any position of said travelingcomputing mechanism for controlling said lock` from said computingmechanism.` i

8. The combination witha bank of keys, of type actions actuated by saidkeys, to enabl'e ya typewriting operation, computing mechanismv having"a traveling element, a special type action, a special key `arrangedelement, so that said special key may be controlled in its action fromsaid traveling element in all positions of the latter.

9. The combination with a type action, of

a key for operating said type action, a lock for said key, a computingmechanism having 'a traveling element, a bar connected to said lock soas to manipulate the same, said barl extending in juxtaposition to saidtraveling element forthe full length of travel thereof, said computingmechanism having a series ofvcomputing wheels, and a bell crank leveruniversal to all of said computing wheels and engaging said bar in any`yposition of said traveling element, whereby the position of said lockmaybe controlled from said computing wheels.

e, 10. The combination with computing mechanism having a travelingelement for indicating numbers, of printing means, and a lock for saidprinting means operable lfrom said ttraveling element in all travelingpositions of the'latter, and dependent upon the number-indicatingposition of said traveling element.

11. The colnbination with computing mechanism, of printing means, a keyfor controlling the action of said printing means, locking means forsaid key, said computing mechanism having a traveling number-indieatingelement, and controlling means for governing said locking means fromsaid traveling element, depending upon the number-indicating positionthereof.

12. The combination with a master Wheel and a computing head or a set ofcomputing wheels, of a carriage along. Which said set' of computingwheels is adjustable, a bar eX- tending along the run-of said carriage,a

clearance-type key upon the framework of the machine and controlled bysaid bar, and means for causing said wheels, at any position of saidcarriage and at any adjustment of said set of wheels along saidcarriage, to operatethrough said bar to render said key effective orineffective.

i13. The combination with a totalizer movable to different lateralpositions and comprising a set of computing members, of a clearancetype, and means for operating said'clearance type; said operating meansincluding a device underthe control of said computing members in alllateral positions of the totalizer.

14. The combination with a set of computing members, of a special type,said set of computing members being bodily adjustable or movablerelatively to said type, and means controlled by said computing membersinthe various positions to which they may be adjusted or movedrelatively to said type,` for controlling the operation of said type.

15. The combination with a set of computing wheels, of a special type,said set of computing wheels being bodily adjustable or .movablerelatively to said type, a bar along which//said set of computing wheelsis adjustable ormovable, and means coperating with said wheels and saidbar in all positions to which the set of wheels are adjusted therealong,for controlling the operation of said type.

16. The combination with a set of computing wheels, of a special type,said setof computing wheels being bodily adjustable or movablerelatively to said type, a bar along which said set of computing wheelsis adjustable or movable, and an interponent between said set of Wheelsand said bar, and adjustable with said set, and serving to transmitmovement between said wheels and said bar to control the operation ofsaid type.

17. The combination with a set of computing wheels, lcfa special type,said set of computing wheels being bodily adjustable or movablerelatively to said type, a bar along which said set of computing wheelsis adjustable or movable, and an interponent between said set of wheelsand said bar, and adjustable with said set, and lserving to transmitmovement between said wheels and said bar to control the operation ofsaid type; said interponent comprising a tumbler, and said wheels havingnotches in alinement when the wheels stand at zero, to receive saidtumbler.

18. The combination with a se't of computing wheels, of a special type,said setl of computing wheels beingY bodilyadjustable or movablerelativelyto saidtype., a

bar along which said set of computing Wheels isl adjustable or movable,a lock for said type, said lock controlled by said bar, and means toenable the computing wheels to control the bar.

19. The combination with a setof'computing wheels, of a special type,said set of computing wheels being bodily adjustable or movable relativeto said type, a bar along which said set of computing wheels isadjustable or movable, a lock for said type, a releaser for said lock,and meansy to enable the computing wheels to cause said bar to operatesaid releaser when the wheels all stand at zero.

20'. In a recording calculating machine, the combinationof a totalizer,means for printing a characteristic mark, mechanism puting wheels, and aplaten, of a special" type effective to print on said platen, meansassociated with said computing wheels for holding said special typeinoperable unless all said Wheels stand at zero, and a key`l foroperating said s pecial type.

24. In a combined typewriting and computing machine, the combinationwith keys and a traveling carriage, of type-actions actuated by saidkeys, certain of said type actions enabling a typewriting operation, oneof said type-actions being adapted to print a distinguishing sign, acomputing mechanism including Wheels, said computing mechanism beingcontrolled by some of said keys, means for 4locking said signprintingtype-action, While leaving said other type-actions free to operate, andmeans for rendering said locking means ineffective in certainpredetermined positions of said Wheels. .25. In a combined typewritingand computing machine, the combination with a series'of keys, certain ofwhich are numeral keys, of a series of types, one type for each key,computing Wheels, a master member Copies of this patent may be obtainedfor for turning said Wheels, a traveling carriage in which said Wheelsare carried to engage said master member seriatz'm, a clearanceindicating type operable by one of said keys, a locking device, and acontrolling member traveling with said carriage and under control ofsaid computing wheels for enabling said locking device to lock saidclearance type against operation under predetermined circumstances.

26. The combination with keys and a traveling carriage, of type actionsactuated by said keys to enable a typewriting opera tion, one of saidtype actions being adapted to print a distinguishing sign, a` computingmechanism moving with said traveling carriage, a master member under thecontrol of certain of said keys for engaging the computing Wheels insaid computing mechanism serz'atz'm, a rocking element traveling withsaid traveling carrie and under the control of said computing wheels,and means for locking saidl sign-printing type action under the controlof 'said'rocking element.

27. In a combined typewriting and `com- 4 puting machine, thecombination with a platen and devices for printing thereon, of computingWheels, a single special key-operated type also printing on said platen,a

rock arm associated with said com uting Wheels, a member associated witheach) computing Wheel for holding said rock arm in effective position, alocking arm for preventing operation of said special type, and aconnection between said rock arm and said locking arm.

FREDERICK A. HART.

Witnesses -PAUL ZmoN,

C. RIPLEY.

ve cents each, by addressing the tloxmnillionexV o! Intenta, Washington,D. C.

